Games like Malpractice
Games like Malpractice include Lethal Company, Escape the Backrooms, The Outlast Trials, PILGRIM, and Five Nights at Freddy's: Secret of the Mimic. We matched them by the tags players give Malpractice on Steam (Exploration, PvE, Action, Action-Adventure, and 3D): closest matches first, and among equally close ones the better-known games.

Lethal Company
Shared: Exploration · First-Person · Horror

Escape the Backrooms
Shared: Horror · Exploration · Psychological Horror

The Outlast Trials
Shared: Horror · PvE · First-Person

PILGRIM
Shared: Exploration · PvE · Horror

Five Nights at Freddy's: Secret of the Mimic
Shared: Action · First-Person · Exploration

SILENT HILL: Townfall
Shared: Action · Exploration · Horror

Pacify
Shared: Exploration · Horror · Psychological Horror

The Forest
Shared: Horror · Exploration · Action

Zort
Shared: Horror · PvE · First-Person

Outlast
Shared: First-Person · Horror · Psychological Horror

Five Nights at Freddy's: Security Breach
Shared: Horror · Exploration · First-Person

Hamster Hunter
Shared: Exploration · Action-Adventure · 3D

Inside the Backrooms
Shared: Horror · Exploration · Psychological Horror

SOMA
Shared: Horror · Exploration · Psychological Horror

PEAK
Shared: Exploration · First-Person · 3D

KLETKA
Shared: PvE · Horror · Action

Backrooms: Escape Together
Shared: Horror · Psychological Horror · Exploration

Total Chaos
Shared: Action · Exploration · Action-Adventure

Darkwood
Shared: Action · Horror · Psychological Horror

A Plague Tale: Requiem
Shared: Action · Exploration · Action-Adventure

Nuclear Nightmare
Shared: Horror · Exploration · First-Person

Amnesia: Rebirth
Shared: Action-Adventure · First-Person · Exploration

Resident Evil Requiem
Shared: Action · Horror · First-Person

Subnautica 2
Shared: Exploration · Horror · First-Person